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Long-Lived Assets (Details Textual) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Finite Lived Intangible Assets [Line Items] |  |  |  |
Impairment charge for write-off of capitalized customer contract costs | $ 10.0 |  |  |
Acquired customer contracts |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |
Remaining weighted-average amortization period |  |  |  | 100 months
Estimated total amortization expense 2021 |  | $ 7.2 |  |
Estimated total amortization expense 2022 |  | 7.0 |  |
Estimated total amortization expense 2023 |  | 5.8 |  |
Estimated total amortization expense 2024 |  | 5.6 |  |
Estimated total amortization expense 2025 |  | 5.6 |  |
Software |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |
Remaining weighted-average amortization period |  |  | 36 months |
Estimated total amortization expense 2021 |  | 11.7 |  |
Estimated total amortization expense 2022 |  | 7.2 |  |
Estimated total amortization expense 2023 |  | 4.6 |  |
Estimated total amortization expense 2024 |  | 1.5 |  |
Estimated total amortization expense 2025 |  | 0.9 |  |
Customer contract costs | Cost of revenue |  |  |  |
Finite Lived Intangible Assets [Line Items] |  |  |  |
Impairment charge for write-off of capitalized customer contract costs |  | $ 10.3 |  |

X
- Definition Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 40 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68051541&loc=SL49131252-203054 + Details
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- Definition Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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